mandoc: double.in:20:2: WARNING: skipping paragraph macro: PP empty
mandoc: double.in:21:2: WARNING: line scope broken: TP breaks TP
mandoc: double.in:30:2: WARNING: line scope broken: PP breaks B
mandoc: double.in:31:2: WARNING: skipping paragraph macro: PP empty
mandoc: double.in:32:2: WARNING: line scope broken: TP breaks TP
